Door-lock.



M. F. RICHARDSON.

DOOR LOCK.

APPucATxoN FILED luLv 30. 1915.

2 SHEETS-SHEETI Patented May 23,1916.

Nl/E/VTOR A TTRNEYS m J W W P F. M

WITNESSES IVI. F4 RICHARDSON.

DOOR LOCK.

APPLICATION FILED JULY 30. 1915.

Patented May 23,1916.

a w a M )mamas INTI" /l/fwzmam@ @n ,Humm I WITNESSES i a citizen of theUnited States,

IVIARK F. RICHARDSON, F LEONI, NEW JERSEY.

DOOR-LOCK.

To all whom t may concern:

Be it known that I, MARK F. RICHARDSON, and a resident of Leonia, in thecounty of Bergen and State of New Jersey, have inifented a new andImproved Door-Lock, of which the following is a full, clear,

The invention relates' to door locks, such 'I as shown and described inthe Letters Patvtion when the door is open.

ent of the United States, No. 1,120,538, granted to me on December 8,1914.

The object of the present invention is to provide a new and improveddoor lock of the type referred to, and in which the bolt automaticallyswings back into folded position within the door casing on opening thedoor, thus forming no undesirable projec- Another object is to permitofunlocking the lock and opening the door on pressure from theinsidewhether the lock is in locked.

position from the outside or not, and to permit of locking thel doorfromthe outside or unlocking it by key-controlled means.

- In order to accomplish the desired result, use ismade of a boltmounted to swing, and

a spring pressing the bolt to swing the latter` yinto retracted foldedposition on opening the door and holding it in the folded positionduring the time the door is open. Use is also made of a. keeper mountedto swing on the door casing and pressed by a spring to hold the keeperin the path of the bolt at the time the door is open, ving adapted toengage the folded bolt and swing the same into coacting locking positionwith the keeper on closing the door.

A practical ,embodiment of the invention isv represented intheaccompanying drawings forming a part of this specification, in whichsimilar characters of referenceindicate corresponding parts in all theviews.

YFigure 1 is a, sectional side elevation of the door lock -as appliedand with the bolt held in locked position by key-controlled means; Fig.2 is a similar view/ of the same with the key-controlled meansinunlocking position; Fig. 3 is a sectional plan view of the same ontheline 3-3 of Fig. l; Fig. 4 is a similar view ofthe same on the line 44 of Fig. 2; Fig. 5 Iis a -cross section of the 4 same on the line 5-5ofFig.,1; Fig. 6 is a sectional plan view of the same with the doorlpartly open and the bolt in foldedposi.- ar view of the sameSpecification of Letters Patent.

and exact description.

, keeper caslng E mortised Iin the said keeper be- Patented May 23,1916.

Application led. .Tuly 30, 1915. Serial No. 42,748.

tion of the inner face of the lock applied to the door and door casing.

` The door A is provided with a mortise for the reception of the lockcasing B in whichis mounted a vertically disposed pivot C carrying abolt C adapted to engage with its freeend a keeper D having a verticallydisposed pivot D journaled in a the door casing rlhe pivot C of the boltC is pressed on by avtorsion spring C2 to normally hold the bolt C infolded inactive position within the lock casing B, as plainly indicatedin Fig. 6. The keeper Dis pressed in an outward direction by a springlD2 and the free end of the keeper D is provided with a hook D? adaptedto project into the path of the free end of the bolt C at the time thedoor is open (see Fig. 6), so that when the door is closed the free endof the bolt C engages the hook D8, which latter imparts an `outywardswinging motion to the bolt C to Aswing the latter into coacting lockingpositionf with the keeper D, which latter is swung inward against thetension of the spring D2 by the inner edge of the casing B.

The' heel of thebolt C is provided with a notch C3 adapted to be engagedby one endof alevei' F pressed on by aspring Cr fulcrumed at F inthecasing B. The other end of the lever F is adapted to be engaged aplate H pivoted. at its lower end at Hzlon the inner face of the door A,as plainly illustrated in Fig. 5. The upper free end of the plate Hengages guide pins H3 held on the door A, and the plate H is adapted toswing into a recess A formed in the inner face of the door A; When thedoor A is in closed and locked position (see Figs. 2 and 4) and pressureis exerted on the plate H swings toward the door and itspin H imparts aswinging lmotion to the lever F to disengage the free end thereof fromthe notch C3 to release the bolt C. rIhe pressure exerted against theplate H causes an outward opening movement of the door A, andl as theblt C is released it is swung into folded position by theaction of itsspring C2. Thus Ywhile the door is open the bolt `then the latter intolocking position by the keeper D, as`

'In order to lol k the A I. ing from the v C is held in retracted boltedposition, as

indicated in Fig. 6. It willbe noticed that by\ the arrangementdescribed the bolt C forms no undesirable projection on the free -edgeof the door A during the time the latter is open. When the pressure onthe plate H isl released then the spring G returns the lever F to itsnormal position so that the lever rengages the notch Cs when the door isclosed and the bolt C is swung outward approved construction, andextending to the l [outer face of the door A. By the use of thiskey-controlled lock Kvthe rollback J i the latteris swung 4'5" on a pushagainst the plate l thelever I is adapted to be pressed bythe tion shownin Figs. 2

V F is free to be actuated by either the pin iso ' the parts are in 5 2and 4 and the key-controlled lock K is actuated then the lever I isswung into encan be turned to impart a swinging motion to the lever I toengage theI upper cam .end I? of the lever Iwith the inner' end of thelever F, orto move it out of engagement with the same, as will bereadily understood by reference to Figs. 1, 3 and 2, 4.' When the leverI is swung to engage the cam end I3 with the inner end ofthe lever- F,then into inactive position relative to the bolt C, that is, is movedout of engagement with the notch C8 to allow the bol C When outside or apush from the inside.

the lever I is swung out of engagement with o the lever F then thelatter moves to, normal activeposition by the action of its sprin Gr toengage theA notch C8- of the bolt and thus hold the latter in activeouter position so that the door cannot be opened on a pull from theoutside but H from the inside, as previously explained. The top of freevend of a spring L held in the casing B to prevent accidental shiftingof the lever 'I at the time the cam end I8 is 1n engagethe inner end ofthe lever F, as

merli'J with shown in Figs. 1 and 3. When the several parts are in theposiof the plate H or by the key-controlled lever- I. When a pressure isexerted against the plate H, the vpin H swings the lever outV ofengagement with the-notch CE4 .to release the bolt C and at the sametime the door A is pushed. open to allow the bolt C to swing into foldedposition by the action of its spring C2. In a like manner when theposition shown in Figs.

to swing into Jfolded position on f vthe opening ofthe door-by vapullpfro'm the to swing,

, door and the door casing,

it can be opened liirst lever to swing 'gagement with the said bolt toallow the latand 4, then the leverl gagement with the lever F to actuatethe latter to release the bolt C to allow of opening the door by apressure from the inside or by a pull on the outside 'of the door by akey or a knob or a similar device.

It is understood that when the parts are in the position shown in Figs.2 and 4, the door cannot be opened from the outside unlessthekey-controlled lever I is first swung into engagement with the leverF, as pre-u viously explained. K

Having thus described my invention, I claim asnew and desire to secureby Letters Patent:

1. In a door ook, the combination with a the said bolt to swing thelatter into rel tracted position on opening the door andl holding it inthe retracted position during the time the door is open, and a pivotedspring pressed keeper having a hook at its free end adapted to engagethe free' end of said retracted bolt on closing the door to swing thebolt into active position relative to the keeper.`

2. Ina door lock, the combination with a spring-actuated keeper mountedto Jswing in the door casing and having a hook at its ,free end, aspring-actuated boltmounted to swing inthe door. and held in closedposition by its spring when the door is open,

the -said keeper having its free hook end 'and the bolt at the time thedoor is open to engage the bolt and swing the latter into open eoactivelocking position with the keeper on closing the door.

3'. A door lock, comprising a bolt mounted a spring pressing vthe saidbolt to swing it into folded position relative to the a lever adapted toengage the said bolt to hoold it in active position, a second leveradapted to engage" the the said lever out of enter to swing into foldedposition-by the ac.- tion of its spring on opening the door, and keycontrolled means on the outer side of the door Iand controlling the saidsecond lever. 7 y

4. A door lock, comprising a bolt mounted to'swing, a sprin pressing thesaid bolt to swing it into fol edposition relative' to the doorandthedoor casing, a lever adapted to engage the vsaidbolt to hold it inactive position, a rocking end and a cam to swing the lever out oiengagement with the said bolt to allow the latter to swing into foldedposition'by the action of its spring on openingthe door, andkey-controlled means controlling the said lever.

5. A door lock, comprising a boltmounted to swing, a spring pressing thesaid bolt to lever having aflork at onel at the other en d, the said.cam being adapted to engage the said lever ioo `the said bolt to allowswing it into folded position relative to the door and the door casing,a lever adapted to engage the said bolt to hold it in active position,'arocking lever having a fork at one end and a cam at the other end, thesaid cam being adapted to engage the said lever to swing the lever outof engagement with the latter to swing into folded position by theactionof its spring on opening the door, key-controlled means controlling thesaid lever, and a spring pressing the cam end of the lever to hold thelatter against accidental movement at the time the lever engages thebolt.

6. A door lock provided with a keeper mounted to swing and having a hookat its free end, a spring pressing the said keeper to project its freeend beyond the door easing during the time the door is open, and aspring-actuated bolt mounted to swing in the door and held in foldedposition by the action of its spring when the door is open, the saidkeeper hook being in the path'of the free end of the folded bolt andadapted to engage the face of the bolt at its free end A the door andthe door casing, a springpressed lever adapted to engage the said bolt4to h old it in active position, a rocking lever having means at itsupper end adapted to engage the said first-mentioned lever to swing thesame out of engagement with the bolt to allow the latter to swing intofolded position by the action of its spring on opening the door, meanson the inner face of the door for moving` the first-mentioned lever outof engagement with the bolt, and keycontrolled means on the outer faceof the door .and controlling the said rocking lever. In testimonywhereof I have signed my name to this specification in the presence oftwo subscribing witnesses.

" MARK F. RICHARDSON. Witnesses:

M. BRoUGHToN, S. I. BULLAGE.

